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About MRI

The images produced by an MRI are created using a large magnet, radio waves and a computer system to process the data. Procedures using MRI involve no ionizing radiation.

Beth Israel Deaconess Medical Center has been at the forefront of MRI clinical care since the early days of MRI use. We utilize state-of-the-art equipment that produces high-quality images, a very important tool for planning your medical treatment.

Our faculty and staff are highly trained and dedicated to giving the best possible patient care, and are actively spearheading innovative research. Additionally, our MRI scanners have been accredited by the American College of Radiology for image quality and system accuracy.

Will the MRI Scan Hurt?

MRI uses superconductive electromagnetics, field gradients and radiofrequency waves to create images of the anatomical and physiological structures of the body. While other imaging modalities can produce similar images, few can do so with the detail and precision of MRI. Because MRI does not use any radiation to produce images, it’s viewed as among the safest of the imaging modalities.

At BIDMC, we have multiple MRI scanners, and each can perform specific functions and tests. Our scanners are at either 1.5 Tesla or 3 Tesla, depending on the machine. To put these magnet strengths into perspective, the magnetic field strength of the Earth is 0.5 gauss, which translates to 0.00005 Tesla, making our 1.5 Tesla magnets 30,000 times more powerful, and our 3 Tesla magnets 60,000 times more powerful, than the magnetic field strength of the Earth.

Despite how safe they are with their lack of radiation, MRI systems are very powerful and loud, and can sometimes be uncomfortable machines. Every effort will be made to make sure you’re as comfortable as possible for your test. If you’re claustrophobic, we have “wide-bore” MRI machines that will give you a little extra room. However, not all tests are able to be performed on wide-bore magnets. When scheduling your appointment, if you feel you need one, simply let the scheduler know and every effort will be made to accommodate you.
Because we have so many machines, we have the ability to perform common or routine exams, as well as more technical exams.